I couldn't reproduce it. After clicking in the Pallete, the name of the previous placed model is directly confirmed. I have the following configuration
Version: 3.3.3.r33x_r20080129-_19UEl7Ezk_gXF1kouftBuild id: M20080221-1800
Version: 3.3.3.r33x_r20080129-8y8eE9UEUWI6qujeED0xT7bcBuild id: M20080221-1800
Eclipse Graphical Editing Framework
Version: 3.3.2.v20080129Build id: 20080221-1602
Could you provide some more info?
For best results, use the Firefox browser..